Kenneth R Evans

US Patent:

20130199857, Aug 8, 2013

Filed:

Jan 31, 2013

Appl. No.:

13/755629

Inventors:

Thorsten Schwefe - Virginia Water, GB
Kenneth R. Evans - Spring TX, US

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 10/50

US Classification:

175374, 51309, 51297

Abstract:

Earth-boring tools include a cutting element mounted to a body that comprises a metal or metal alloy, such as steel. A cutting element support member is mounted to the body rotationally behind the cutting element. The cutting element support member has an at least substantially planar support surface at a first end thereof, and a lateral side surface extending from the support surface to an opposing second end of the cutting element support member. The cutting element has a volume of superabrasive material on a first end of a substrate, and a lateral side surface extending from the first end of the substrate to an at least substantially planar back surface. The at least substantially planar back surface of the cylindrical substrate abuts an at least substantially planar support surface of the cutting element support member.

US Patent:

42011264, May 6, 1980

Filed:

Nov 21, 1978

Appl. No.:

5/962707

Inventors:

Kenneth R. Evans - Crosby TX

International Classification:

A23N 500

US Classification:

99574

Abstract:

A transport mechanism for transporting an uncracked nut from a supply of uncracked nuts into a zone between a pair of synchronously movable surfaces which receive the uncracked nut and transfer it to a zone of reduced geometry which results in the imposition of an axial crushing force on the nut is disclosed.

US Patent:

20210238928, Aug 5, 2021

Filed:

Feb 5, 2020

Appl. No.:

16/782902

Inventors:

- Houston TX, US
Kenneth R. Evans - Spring TX, US

International Classification:

E21B 10/54

Abstract:

Displacements for use in forming at least a portion of a bit body of an earth-boring rotary drill bit may comprise a machineable material portion configured to form an integral machineable portion of the bit body. Such displacements may optionally also include a sacrificial material portion. Bit bodies resulting from the use of such displacements may comprise a main body comprised of a particle-matrix composite material and a plurality of integral machineable portions. Earth-boring rotary drill bits may include such bit bodies. Methods of manufacturing such bit bodies, and methods of manufacturing earth-boring rotary drill bits utilizing displacements are also disclosed.

US Patent:

20200256132, Aug 13, 2020

Filed:

Sep 28, 2018

Appl. No.:

16/651970

Inventors:

- Houston TX, US
Steven Craig Russell - Spring TX, US
Kenneth Evans - Spring TX, US
Stephen Manson Slavens - Cypress TX, US
Reed W. Spencer - Spring TX, US

International Classification:

E21B 10/55
E21B 10/43

Abstract:

A drill bit for removing subterranean formation material in a borehole comprises a bit body comprising a longitudinal axis, a plurality of blades extending radially outward from the longitudinal axis along a face region of the bit body and extending axially along a gauge region of the bit body, and an insert coupled to at least one blade in the gauge region. The insert comprises an elongated body having an upper surface, a lower surface, and a longitudinal axis extending centrally therethrough and intersecting the upper and lower surfaces. The upper surface comprises a bearing surface for supporting for the drill bit and providing a surface on which the subterranean formation being drilled rubs against the insert without exceeding the compressive strength of the selected formation. The insert is coupled to the blade such that the upper surface thereof extends radially beyond an outer surface of the blade and the lower surface thereof extends radially below the outer surface of the blade.

US Patent:

20200087993, Mar 19, 2020

Filed:

Nov 22, 2019

Appl. No.:

16/692192

Inventors:

- Houston TX, US
Juan Miguel Bilen - The Woodlands TX, US
Steven C. Russell - Sugar Land TX, US
Kenneth R. Evans - Spring TX, US

International Classification:

E21B 10/633
E21B 10/55

Abstract:

An earth-boring tool includes a blade located on a body of the earth-boring tool with a pocket formed in an exposed outer surface of the blade. A formation-engaging structure is affixed within the pocket. The formation-engaging structure includes a distal end, a proximal end and a tapered sidewall therebetween. The distal end of the formation-engaging structure includes a formation-engaging surface. The tapered sidewall engages a tapered inner surface of the pocket. The tapered sidewall of the formation-engaging structure and the tapered inner surface of the pocket are each sized and configured to provide an interference fit between the formation-engaging structure and the pocket of the blade. In additional embodiments, instead of retention by interference fit, the formation-engaging structure is retained to the blade by a threaded fastener threaded within a tapped bore extending through the blade. The threaded fastener is received within a receiving formation of the formation-engaging structure.

US Patent:

20190284877, Sep 19, 2019

Filed:

Jun 6, 2019

Appl. No.:

16/433400

Inventors:

- Houston TX, US
Kenneth R. Evans - Spring TX, US
Bibek Ghimire - The Woodlands TX, US

International Classification:

E21B 10/43
E21B 10/54

Abstract:

An earth-boring tool comprises a body, a plurality of blades, and cutting elements. The body has a face at a leading end thereof and comprises a cone region, a nose region, a flank region, a shoulder region, and a gage region. The plurality of blades extends longitudinally and radially over the face. The cutting elements are disposed within the shoulder region of the body on different blades of the plurality of blades than one another, a first of the cutting elements exhibiting a different size than a second of the cutting elements. A method of forming an earth-boring tool and a method of forming a borehole in a subterranean formation are also described.

US Patent:

20190242237, Aug 8, 2019

Filed:

Feb 5, 2018

Appl. No.:

15/888904

Inventors:

- Houston TX, US
Kenneth R. Evans - Spring TX, US
Chaitanya K. Vempati - Conroe TX, US
Navish Makkar - Celle, DE
Priscila Farias Ronqui - Orlando FL, US
Eric C. Sullivan - Houston TX, US

International Classification:

E21B 47/00
G01L 1/16
G01V 9/00
E21B 10/42
E21B 47/01
E21B 47/06

Abstract:

An earth-boring tool includes a shank. The shank may include a central bore extending partially through the shank. An end-cap may be disposed within the central bore, and the end-cap may include a first flange, a second flange, and a body portion extending between the first flange and the second flange. An annular chamber may be defined between the body portion of the end-cap and an interior wall of the central bore of the shank. At least one strain gauge may be secured to an outer surface of the body portion of the end-cap. At least one stain gauge may be secured to a cap portion welded over a recess formed in the earth-boring tool.

US Patent:

20190242238, Aug 8, 2019

Filed:

Jul 17, 2018

Appl. No.:

16/037883

Inventors:

- Houston TX, US
Kenneth R. Evans - Spring TX, US
Chaitanya K. Vempati - Conroe TX, US
Navish Makkar - Celle, DE
Priscila Farias Ronqui - Orlando FL, US
Eric C. Sullivan - Houston TX, US

International Classification:

E21B 47/00
E21B 10/42
E21B 47/06
E21B 47/01
G01V 9/00
G01L 1/16

Abstract:

An earth-boring tool includes a shank. The shank may include a central bore extending partially through the shank. An end-cap may be disposed within the central bore, and the end-cap may include a first flange, a second flange, and a body portion extending between the first flange and the second flange. An annular chamber may be defined between the body portion of the end-cap and an interior wall of the central bore of the shank. At least one strain gauge may be secured to an outer surface of the body portion of the end-cap. At least one stain gauge may be secured to a cap portion welded over a recess formed in the earth-boring tool.